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Wind turbine with adjustable damper

a technology of wind turbines and dampers, which is applied in the direction of liquid fuel engines, vessel construction, marine propulsion, etc., can solve the problems of reducing the annual being costly, and compromising the energy production of wind turbines

Inactive Publication Date: 2013-10-24
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a wind turbine with a damper that can adjust the sound made by the turbine. This damper can be adjusted to change the frequency of the sound and make it more or less resonant. The technical effect of this invention is improved control over the sound produced by a wind turbine, which can help to reduce noise and make it more efficient.

Problems solved by technology

Typically, systems and methods that reduce oscillations and associated fatigue of wind turbine components have disadvantages such as reducing annual energy production of wind turbines, or being costly.
For example, methods to reduce oscillations of wind turbines can include forbidding the operation of the wind turbine at some operational frequencies that are near a natural frequency of the tower, which may reduce the risk of oscillation induced damage, but also compromise the energy production of the wind turbine.

Method used

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  • Wind turbine with adjustable damper
  • Wind turbine with adjustable damper
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Examples

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Embodiment Construction

[0025]Reference will now be made in detail to the various embodiments, one or more examples of which are illustrated in each figure. Each example is provided by way of explanation and is not meant as a limitation. For example, features illustrated or described as part of one embodiment can be used on or in conjunction with other embodiments to yield yet further embodiments. It is intended that the present disclosure includes such modifications and variations.

[0026]Embodiments described herein include a wind turbine that allows for greater annual energy production, reduced risk of fatigue and fatigue induced failure, reduced oscillations which can cause fatigue, and combinations thereof. Embodiments described herein result in a combined effect of allowing a wind turbine to operate within a broader range of operational frequencies, and at reducing undesirable frequency response of fatiguing periodic and / or oscillatory motion of the wind turbine, for example oscillations of the tower. ...

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PUM

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Abstract

A wind turbine is provided, comprising a rotor arranged at a nacelle, the nacelle supported by a tower, and a damper including a movable mass. The damper is adapted for variably adjusting a frequency response of the wind turbine.

Description

BACKGROUND OF THE INVENTION[0001]The subject matter described herein relates generally to methods and systems for wind turbines, and more particularly, to methods and systems for damping oscillations of wind turbines.[0002]At least some known wind turbines include a tower and a nacelle mounted on the tower. A rotor is rotatably mounted to the nacelle and is coupled to a generator by a shaft. A plurality of blades extend from the rotor. The blades are oriented such that wind passing over the blades turns the rotor and rotates the shaft, thereby driving the generator to generate electricity.[0003]Oscillations of wind turbines, for example the periodic bending of the tower, can cause fatigue of wind turbine components, therefore systems and methods of reducing oscillations of wind turbines are implemented. Typically, systems and methods that reduce oscillations and associated fatigue of wind turbine components have disadvantages such as reducing annual energy production of wind turbine...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F03D11/00
CPCF03D13/35Y02E10/72
Inventor VAN STEINVOREN, SJOERD
Owner GENERAL ELECTRIC CO
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